Both of



H. P. SMITH.

CUTTING OFF ATTACHMENT FOR HAIR PIN MACHINES.

APPLICATION FILED MAY 21. 1918.

1,309,66 1 Patented July 15, 1919.

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INVENTOR %ev' ATTORNEY TIIB COLUMBIA PLANOORAI'M I: c-

UNITED STATES PATENT OFFICE.

HOMER P. SMITH, 0F APPLETON, WISCONSIN, .ASSIGNOR 0F ONE-THIRD TO F. EDWARD SAECKER AND ONE-THIRD TO HERMAN G.

CONSIN.

SAECKER, BOTH OF APPLETON, WIS- Specification of LettersPatent.

Patented July 15, 1919.

Application filed May 27, 1918. Serial N 0. 236,811.

To all whom it may concern:

Be it known that I, HOMER P. SMITH, a citizen of the United States, and resident of Appleton, in the county of Outagamie and State of Wisconsin, have invented certain new and useful Improvements in Cutting- Ofi' Attachments for Hair-Pin Machines; and I do hereby declare that the following is a full, clear, and exact description thereof.

My invention refers to improvements in means for cutting wire into predetermined lengths, the same being particularly adapted for use in connection with machines for making hair pins, such as that illustrated in my copending application Serial No. 215500, filed February 5, 1918.

As pointed out in said application it is particularly desirable in hair pin forming machines to cut the wire in predetermined lengths in such a manner that the ends of said lengths will be free of any irregularities or roughness which might tend to catchin the users hair. The provision of an improved means for accomplishing this is the principal aim of this invention.

\Vith this general object in view the invention resides in certain peculiarities of construction, combination and arrangement of parts which will be hereinafter particularly pointed out in the description and claims.

In the accompanying drawings Figure 1 represents a sectional view through the table of a hair pin forming machine and showing my invention, which is secured thereto, in front elevation, and

Fig. 2 is a vertical sectional view on the plane of the line 2-2 of Fig. 1.

Referring more particularly to the figures of the drawing wherein similar reference characters denote like parts, it will be seen that the numeral 1 designates broadly a horizontally positioned table over which a wire W is fed and intermittently operated upon by the several hair pin forming mechanisms illustrated in the above referred to copending application. In the present application of my invention the table 1 is provided With an opening 2 to receive my improved mechanism and to permit the wire 12 to be fed therethrough at only a slight distance above the table.

Said mechanism includes a horizontally positioned cylindrical tubular bearing spin- 11m which has formed integrally therewith a pair of laterally andoppositely extending attaching arms 41, which are secured to the table 1 by bolts or the like 5. The arms 1 straddle the opening 2 so that the tubular bearing spindle is positioned within the latter.

For the purpose of directing the wire WV through the bearing spindle, I dispose in the bore thereof a longitudinally channeled guide 6, the side wall of the channel of which are positioned vertically and have a wire holding arm 7 pivoted at one end therebetween. The free end of said arm 7 is disposed adjacent the discharge end of the guide 6, the intermediate portion of said arm having a pin 8 pivoted thereto. Said pin is positioned vertically and is slidably disposed through a bearing opening through the wall of the spindle, the outer end of said pin having a head 9, between which and the wall of the spindle is positioned an expansile coil spring 10. The pin is thus normally forced outwardly to space the free end of the wire holding arm away from the bottom of the channel of said guide 6.

A sleeve 11 is journaled on the spindle 3,

its inner end bearing against a shoulder formed by the connection of the arms 1 with the. latter; a retaining ring 12 threaded on the discharge end of the spindle 3 retains the sleeve against longitudinal movement. The

cutting mechanism for severing the wire W into predetermined lengths is carried by this sleeve 11 and consists of a pair of rotatable disks 13 and 14, the former of which has its periphery sharpened into a knife edge, while the periphery of the latter is flat to provide a suitablebearing surface for coaction with said knife edge. The disk 14 is rotatably connected with the sleeve 11 by means of a bolt or the like 15 threaded into the latter.

The sleeve 11 is provided with a longitudinally extending groove 16, the same being positioned diametrically opposite the bolt 15, and is adapted to receive a cutter carrying arm 17, on the free outer end of which the cutting disk 13 is journaled. Said arm is pivoted at its inner end between the walls of the groove 16 at the inner end portion thereof, and is normally forced upwardly by a leaf spring or the like 18. As a result of this construction the cutting disk 13 is nor mally urged away from the disk 14, and thus it is only when the former is moved toward the latter that the wire W will be severed.

of a ring 26, said ring gaged by an expansible as follows Inward movement of the arm 17, and consequently the cutting disk 13, is procured by the longitudinal shifting of a pulley collar 19 splined as at 20 to the sleeve. That is to say the cutter carrying arm 17 is provided with an inclined shoulder 21 against which an inwardly extending stud 22 on the collar bears when the same is shifted outwardly at predetermined times.

In addition to a belt groove 28, the collar 19 also has an annular channel 24: in which spanner pins 25 project from the inner side forming the intermediate portion of a 'collar shifting lever 27. Said lever 27 extends through the opening-2 in the table 1 and has its lower end pivoted to a bracket 28carried by saidtable, the injacent thereto on one side of the. plate is a second cam 34.

Also driven by suitable mechanisms (not shown) is a belt 35, the lower stretch of which is trained around the collar '19 and disposed in the belt groove 23 thereof. It will thus b'e'seen that as this collar is keyed to the sleeve that the latter will be revolved to cause the rotation of the cutting members 13 and 14 about the wire W to make an an nuiar cut therein. I

The operation of the invention is briefly The wire W is fed through the channel of the guide 6, and thereafter at predetermined intervals the portions of the wire which project beyond the outer end of the spindle 3 are-severed, and as the cutting operation takes place at regular intervals,

the severed pieces of wire will be of uniform length. As 'hereinbefore pointed out the cutting is done by the disk 18 when the same is-inoved inwardly toward the disk 1 1,-which movement takes place whenever the cam 3 1 engages the roller 31 and moves the lever 27 upwardly. .1

However, inorder that the wire W will not rotate when being cut, the same is gripped adjacent the cutting disks by the free end of the wire holding arm 7. This arm 7 is actuated just prior to the operation of the cutting disks and concurrently therewith, it being forced inwardly by the engagement of the cam 33 With the head 9 of the pin 8. After the cams and .34: are moved out of engagement wlth the head '9 spindle, and a cutting blade carried by the sleeve and roller 31 respectively, the springs 10 and 18 return the arms 7 and 17 respectively to their inactivepositions,"and the wire is fed through the guide 6 by suitable mechanisms. (not shown). This movement of the several parts continues intermittently at predetermined intervals as is obvious.

Attention is directed to the fact that the wire W is always centered correctly with respect to the point of peripheral engagement between the disks 13 and 14 by aplate .36 having a V-shaped notch as shown in Fig.

1'. The bottom of this notch is adjacent the bottom of the channel of the guide 6 so that when the end of the arm 7 forcesthe wire downwardly it naturally settles into the bottom of said notch.

Various minor changes may be made in the form and proportion of thevarious operating parts of this invention without departing from or sacrificing any of the principles thereof.

I claim; K 1

1. In a machine of the class described, a stationary tubular bearingspindle adapted to have a wire slide therethrough, asleeve rotatable on said'spindle, a cutting blade carried by the sleeve and disposed adjacent normally out of operative position, means within the stationary spindle for intermittently gripping the wire therein, and means for intermittently moving the blade into operating position.

' 2. In a machine of the class described, a stationary tubular bearing spindle adapted to have a wire slide therethrough, a sleeve rotatable on "said spindle, a cutting blade carried by the sleeve and disposed adjacent one end of the spindle to sever a wire projected therefrom, said cutting blade being normally out of operative position, means within the stationary spindle for gripping the wire, said means being normally inactive, and means for simultaneously operating the gripping means and moving the cutting blade into active position.

3. In a machine of the class described, a stationary tubularbearing spindle adapted to have a wire Isl-ide therethrough, a wire holdinglever pivoted at one end within the spindle, means engageable with the intermediate portion of the lever to grip a wire betweenthe other end and the wall of the a sleeve rotatable on-said spindle,

and disposed adjacent one end'of the spindle to sever 'a wire projected therefrom when the latter is gripped by said lever.

4. In a machine of the class described, a stationary tubular bearin spindle, a longitudinally. channeled guice in said tubular bearing spindleadapted to have a wire-slide therethrough, a wire holding lever pivoted one end of the spindle to sever a wire projected therefrom, said cutting blade being between the walls of said channel, means extending into said channel and engageable with the intermediate portion of said lever to grip a wire between one end of the same and one wall of said channel, a sleeve rotatable on said spindle, and a cutting blade carried by the sleeve and disposed adjacent one end of the spindle to sever a Wire projected therefrom when the latter is gripped by said lever.

5. A machine of the class described, a stationary tubular bearing spindle, a longitudinally channeled guide in said spindle adapted to have a wire slide therethrough, a lever pivoted between the Walls of said channel, means extending into said channel and engageable with the intermediate portion of said lever to grip the wire between one end of the same and one wall of the channel, a blade having a V-shaped notch and secured at the discharge end of said guide to center the wire in the channel thereof, and a cutting blade disposed adjacent said discharge end of the guide to sever the wire projected therefrom.

6. In amachine of the class described, a stationary tubular bearing spindle adapted to have a wire slide therethrough, a sleeve rotatable on said spindle, a cutting blade carried by the sleeve and disposed adjacent one end of the spindle to sever a wire proj ected therefrom, a lever pivoted at one end within the spindle, a pin slidable through the spindle and engageable With said lever, and a rotatable cam disk having a cam thereon to intermittently engage and depress said pin.

In a machine of the class described, a stationary tubular bearing spindle adapted to have a Wire slide therethrough, a Wire holding lever pivoted at one end within the spindle, means engageable with the intermediate portion of said wire holding lever to grip the Wire between the other end and the wall of the spindle, a sleeve rotatable on said spindle, said sleeve having a longitudinal channel, a cutter carrying lever pivoted in said channel, a cutter carried by the outer end of said cutter carrying lever and disposed adjacent one end of the spindle to sever the wire projected therefrom, said cutter being normally out of operative position, a collar non-rotatable and longitudinally shiftable on said sleeve and having means engageable with said cutter carrying lever when shifted in one direction to move the cutter into operative position, and means for intermittently shifting the collar.

8. In a machine of the class described, a

stationary tubular bearing spindle adapted to have a wire slide therethrough, a wire holding lever pivoted at one end within the spindle, a pin slidable through the spindle and engageable with the intermediate portion of said wire holding lever, a sleeve rotatable on said spindle, said sleeve having a longitudinal channel, a cutter carrying lever pivoted in said channel, a cutter carried by the outer end of said cutter carrying lever and disposed adjacent one end of the spindle to sever a wire projected therefrom, said cutter being normally out of operative position, a collar non-ro tatable and longitudinally slidable-on said sleeve and having means engageable with said cutter carrying lever when shifted in one direction whereby to move the cutter into operative position, a cam engaging lever connected with said collar, and a rotatable cam disk having a pair of cams thereon, one of said cams being intermittently engaged with said pin and the other cam bein intermittently brought into contact with said cam engaging lever, said cams being disposed adjacent each other whereby the wire holding lever and the cutter will be substantially simultaneously operated. In testimony that I claim the foregoing I have hereunto set my hand at Appleton, in the county of Outagamie and State of Wisconsin.

HOMER P. SMITH.

copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents. Washington, D. 0. 

